Here are the rules: you can only post one. Mine?
Open up /etc/inputrc and add `set completion-ignore-case on.`
Before: http://dl.dropbox.com/u/8672882/Screenshots/ar50.png
After:
http://dl.dropbox.com/u/8672882/Screenshots/4uil.png
(PS: Hursh, when is code support coming? :)